CN1743137A - Conversion equipment with synchronisation spring - Google Patents
Conversion equipment with synchronisation spring Download PDFInfo
- Publication number
- CN1743137A CN1743137A CN 200510099490 CN200510099490A CN1743137A CN 1743137 A CN1743137 A CN 1743137A CN 200510099490 CN200510099490 CN 200510099490 CN 200510099490 A CN200510099490 A CN 200510099490A CN 1743137 A CN1743137 A CN 1743137A
- Authority
- CN
- China
- Prior art keywords
- conversion equipment
- spring
- synchronisation spring
- synchronisation
- moving movement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000000284 resting effect Effects 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 241000540905 Acnemia Species 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/006—Mode changers; Mechanisms connected thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D2216/0007—Details of percussion or rotation modes
- B25D2216/0015—Tools having a percussion-only mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D2216/0007—Details of percussion or rotation modes
- B25D2216/0023—Tools having a percussion-and-rotation mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D2216/0007—Details of percussion or rotation modes
- B25D2216/0038—Tools having a rotation-only mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/371—Use of springs
Abstract
The present invention relates to the to have synchronisation spring conversion equipment of (10), this synchronisation spring be used for a hand held power machine transmission device (16) can axially movable converting member (14) first moving movement (12) synchronously, wherein synchronisation spring (10) is provided to be used for direction (20) upper deflecting towards first moving movement (12) till first toothed portion (18) engagement.The present invention proposes: this synchronisation spring (10) is provided to also be used for: towards direction (24) upper deflecting of second moving movement (26) opposite with first moving movement (12) till second toothed portion (22) engagement.
Description
Technical field
The present invention relates to a kind of conversion equipment with synchronisation spring, this synchronisation spring be used for a hand held power machine transmission device can axially movable converting member first moving movement synchronously, wherein synchronisation spring is provided to be used for direction upper deflecting towards first moving movement till the engagement of first toothed portion.
The invention still further relates to a kind of this hand held power machine that is equipped with conversion equipment of synchronisation spring.
Background technology
The someone proposes, and is convertible hand held power machine, conversion equipment of for example hammer drill equipment, and this conversion equipment has a synchronisation spring.In the case, an operator can be by a functional unit antagonistic spring power ground from a resting position deflection throw over spring.Spring force is supported on the axially movable converting member by a bridgeware, this converting member moves axially by spring force, cling on the end face of another toothed portion up to the end face of first toothed portion of converting member till, spring force is supported on this toothed portion then.If one of them toothed portion rotates relative to another toothed portion, then these toothed portions form engagement in a synchronous turned position, and wherein synchronisation spring automatically is inserted in another toothed portion first toothed portion.
These conversion equipments also use relatively with some converting members, and these converting members form engagement with second toothed portion on second direction when reaching at second moving movement with first toothed portion formation engagement on the first direction when first moving movement.In the case, one first synchronisation spring is used for synchronously being used for synchronously and the engagement of second toothed portion with the engagement of first toothed portion and one second synchronisation spring.
Summary of the invention
The present invention relates to a kind of conversion equipment with synchronisation spring, this synchronisation spring be used for a hand held power machine transmission device can axially movable converting member first moving movement synchronously, wherein synchronisation spring is provided to be used for direction upper deflecting towards first moving movement till the engagement of first toothed portion.
The present invention proposes: this synchronisation spring is provided to also be used for: towards the direction upper deflecting of second moving movement opposite with the first moving movement direction till the engagement of second toothed portion.Can advantageously realize thus: not only the engagement of the engagement of first toothed portion but also second toothed portion can come synchronously by a single synchronisation spring.
At this, be interpreted as " design " for " setting " and reach " equipment ".Can think that the transmission device of significant any gear graduation is considered relatively with the technical staff in principle according to conversion equipment of the present invention.Because light, as to save structure space and cost efficient frame mode, its advantage especially embodies relatively with convertible hand held power machine.Particularly advantageously, such conversion equipment can be applicable in the conversion driving unit of hammer drill, and this hammer drill has a plurality of mode of operations, for example drill mode, percussive drilling pattern and cutter pricker pattern.At this, be interpreted as the profile that the technical staff thinks that significant any departing from (abweichend) is circular as toothed portion, this profile is provided to produce fixing relation between the turned position of at least two parts.
Propose in a configuration of the present invention, synchronisation spring is provided to be used for: be deflected first area and being deflected in the second area when second moving movement when first moving movement.Can reach thus, these configurations can be determined for the reset force of the respective direction of moving movement at least to a great extent independently.
Propose in addition, at least one of described zone is made of a spring leg.One be can obtain thus and the frame mode of structure space and the reset force that can determine neatly saved.It is such that configuration of the present invention also can be considered, converts the pulling force location status to during the moving movement of the helical spring synchronisation spring that wherein is configured to acnemia on first direction and converts the thrust location status during moving movement on second direction to.
If synchronisation spring has pre-tensioning at least in a resting position state, then can realize the conversion equipment of a special no gap and tensioning.At this, a location status that occurs in the mounted state of synchronisation spring is called as the resting position state during operation, and synchronisation spring non-displacement power is applied on the converting member in this location status.
If this conversion equipment comprises a latching member that is used to support the reaction force of synchronisation spring at least, then can keep tensioned especially reliably.In the case, latching member can or be molded on the housing of a hand held power machine that comprises conversion equipment or is bearing on the bridgeware of rotating converting member with being molded over axial restraint.
Propose in addition, conversion equipment comprises a drive disk assembly that is used for being engaged in synchronisation spring.The risk of pollution that can avoid direct, a manual intervention thus and avoid thus increasing by the intervention position of opening wide.
If drive disk assembly is arranged on the functional unit that can rotate prejudicially, then can realize the frame mode of durable especially and cost efficient in an interval.
In the case, if when the spring force of drive disk assembly by synchronisation spring is fixed on the terminal location in described interval, can advantageously abandon the locking or the stabilising arrangement that add.
If synchronisation spring is provided to be used for: when being bearing in the bridgeware on the rotating converting member, can realize the reliable mobile of converting member with being engaged in an axial restraint.
Propose in addition, synchronisation spring has a FX territory, and this FX territory is provided to be used to be engaged in the fixture of machine hand tool housing.The power of synchronisation spring is supported on the machine hand tool housing at least in part.The particularly advantageous configuration of the present invention is that wherein the power of synchronisation spring at least almost entirely is supported on the machine hand tool housing on the terminal location in described interval.
When if synchronisation spring has the vertical plane of symmetry of relative at least one direction of displacement, then can obtain the feature of a symmetry.
Description of drawings
From describing, following accompanying drawing can obtain other advantage.Express one embodiment of the present of invention in the accompanying drawings.Accompanying drawing, specification and other application documents comprise a plurality of features in combination.The technical staff can conform with the destination and investigate each single feature and have a mind to the free burial ground for the destitute and be combined into other combination.
Accompanying drawing is:
Fig. 1: a hammer drill with a functional unit,
Fig. 2: the summary view of hammer drill conversion equipment among Fig. 1,
Fig. 3: the part of a synchronisation spring of an alternative conversion equipment, a functional unit and a bridgeware, and
Fig. 4: conversion equipment sectional view among Fig. 3.
The specific embodiment
Fig. 1 represents to have a hammer drill by the machine hand tool housing 42 of plastics and injection molding spare work.Fore one of this hammer drill has a functional unit 48 that is configured to knob in the side regions of drill chuck head 44, this functional unit by one around cannelure can in an interval (Intervall), be bearing in rotationally on the housing 42 of hand held power machine.This interval size is 180 °, and each horizontal level by microscler handgrip parts 46 of a functional unit 48 in the view of Fig. 1 of some terminal locations that wherein should the interval characterizes.
An operator can select between three mode of operations of hammer drill by functional unit 48.A hand held power machine transmission device 16, that be configured to gear shaft 14 in the case converting member moves in the axial direction and some toothed portions 18,22 is formed and meshes and/or make these toothed portions 18,22 disengagement engagements (Fig. 2).
Fig. 2 represents the transmission device 16 of hand held power machine and the summary view of conversion equipment attached, that comprise functional unit 48 thereof.A synchronisation spring 10 is pushed and is enclosed within on the bridgeware 36, and this bridgeware is only partly represented with the cross section in Fig. 2.Synchronisation spring 10 has a FX 38 that is configured to coil for this reason, but by this FX synchronisation spring pushing sleeve on a fixture 40 that is configured to axle journal, this axle journal is molded on the bridgeware 36.Drive disk assembly 34 is engaged between two zones 28,30 that are configured to spring leg.This drive disk assembly 34 is molded on the functional unit 48, extend in the interior space of hand held power machine 42 and the pivot center of relative functional unit 48 is provided with prejudicially.The face that radially outward points to of drive disk assembly 34 is configured to parabolic spigot surface 50.End in these zones 28,30, the pre-tensioning of synchronisation spring 10 are supported on the latching member 32, and this latching member is set between these zones 28,30.
In the home position state with vertical handgrip parts 46, two toothed portions 18,22 are in engagement, make the motor of hammer drill not only drive rotating driving device but also drive beater mechanism thus.
If the operator is from the location status of the functional unit 48 of handgrip parts 46 shown in Fig. 1, that have vertical placement, clockwise direction rotates 90 ° with functional unit 48 in the view of Fig. 1, and then the spigot surface 50 of drive disk assembly 34 by parabolical is applied to a power on the zone 28 and the power of end portion supports on latching member 32 with this zone 28 is reduced.The power that is delivered on the synchronisation spring 10 by drive disk assembly 34 is delivered on the bridgeware 36 by FX 38 and fixture 40 continuing on the direction 20, this bridgeware rotationally but axial restraint be supported on the gear shaft 14 of hand held power machine transmission device 16.Gear shaft 14 carries out a moving movement 12 on the direction 20 of toothed portion 22 thus, and the engagement of toothed portion 18 is thrown off.Beater mechanism will be thrown off with motor and be connected, and this hammer drill is switched to drillman's operation mode.
If operator's rotating-operation member 48 makes it turn back to vertical home position by this terminal location, then gear shaft 14 move on the second direction 24 of toothed portion 18 a bit of, up to contacting with the end face at the rounded angle of the tooth of toothed portion 18.Drive disk assembly 34 reaches and by bridgeware 36 one is applied on the gear shaft 14 in the axial force on the direction 24 by spigot surface 50, synchronisation spring 10, and this gear shaft is supported on the end face of toothed portion 18.When this power surpassed a threshold value of being determined by pre-tensioning, second area 30 was towards direction 24 deflections in the case.If gear shaft 14 is for example because a low-angle has been rotated in a vibration, then these teeth of toothed portion 18 can slide mutually by the end face of their roundings with inserting, and wherein synchronisation spring 10 makes gear shaft 14 move a moving movement 12 on direction 24.Toothed portion 18 synchronously forms engagement.
If the operator rotates 90 ° on second terminal location in interval with functional unit 48 in the counterclockwise direction, then gear shaft 14 moves on the direction 24 of toothed portion 18, with said process the engagement of toothed portion 22 is thrown off.Spring force with synchronisation spring 10 of the plane of symmetry that a relative gear shaft 14 vertically extends is fixed in the second end position drive disk assembly 34.The rotating driving device of hammer drill is thrown off connection in this location status, reaches motor and only drives beater mechanism, and this hammer drill is switched in the cutter pricker mode of operation thus.
If the operator rotates 90 ° with functional unit 48 in the clockwise direction from the second end position at last and turns back to the home position, then synchronisation spring 10 makes on the direction 20 of gear shaft 14 towards second toothed portions and moves, wherein the zone 28 of synchronisation spring 10 is towards direction 20 upper deflectings of this displacement, till toothed portion 22 synchronously meshes.
In Fig. 3 and 4, represent another embodiment of the present invention.Similarly feature is provided with similar label.In its explanation, will mainly describe the difference with the embodiment shown in Fig. 1 and 2 in detail, and can be with reference to the explanation of embodiment shown in figure 1 and 2 in identical characteristic aspect.
Comprise the synchronisation spring 10 of both legs at conversion equipment shown in Figure 3, it is pushed and is enclosed within one and is molded on the fixture 40 on the machine hand tool housing 42, hitching post shape and can rotates on this fixture 40.Rotatably support an oscillation bearing 52 and a gear 54 (Fig. 4) on the driving shaft 56 of this external axial restraint.Oscillation bearing 52, gear 54 and driving shaft 56 respectively have an identical shaped exterior contour, and a cover tubular converting member 14 that has with the corresponding in-profile of this exterior contour axially movably is bearing on this exterior contour.Synchronisation spring 10 acts on the converting member 14 by a bridgeware 36.Is connected in relative rotation having produced not have between driving shaft 56, oscillation bearing 52 and the gear 54 at the in-profile of converting member 14 on the centre position by itself and described exterior contour overlap joint, so that starts the beater mechanism of hand held power machines and pass through the device of rotation driving of gear 54 startup hand held power machines by oscillation bearing 52.
If an operator has moved a moving movement 26 with converting member 14 by functional unit 48 on the direction 24 of gear 54, then the exterior contour of the in-profile of converting member 14 and oscillation bearing 52 cooperate disengagement so that beater mechanism is thrown off and is connected and only be that rotating driving device is activated.The operator is transformed into drillman's operation mode with hand held power machine thus.If the operator is moved back into the center with converting member 14, then cooperate in the above described manner between the exterior contour of synchronisation spring 10 in-profile that synchronously makes converting member 14 and oscillation bearing 52, a zone 30 that wherein makes synchronisation spring 10 is at direction 20 upper deflectings.By converting member 14 moving on the direction 20 of oscillation bearing 52, the operator can make rotating driving device throw off to connect and make hand held power machine be transformed into cutter pricker mode of operation.
The reference number table
10 synchronisation springs, 34 drive disk assemblies
12 moving movements, 36 bridgewares
14 converting members, 38 FX territories
16 hand held power machine transmission devices, 40 fixed parts
18 toothed portions, 42 machine hand tool housings
20 directions, 44 drill chuck head
22 toothed portions, 46 handgrip parts
24 directions, 48 executive components
26 moving movements, 50 spigot surfaces
28 regional 52 oscillation bearings
30 regional 54 gears
32 latching members, 56 driving shafts
Claims (11)
1. the conversion equipment that has synchronisation spring (10), this synchronisation spring be used for a hand held power machine transmission device (16) can axially movable converting member (14) first moving movement (12) synchronously, wherein synchronisation spring (10) is provided to be used for direction (20) upper deflecting towards first moving movement (12) till first toothed portion (18) engagement, and it is characterized in that: this synchronisation spring (10) is provided to also be used for: towards direction (24) upper deflecting of second moving movement (26) opposite with first moving movement (12) till second toothed portion (22) engagement.
2. according to the conversion equipment of claim 1, it is characterized in that: synchronisation spring (10) is provided to be used for: be deflected first area (28) and being deflected in the second area (30) when second moving movement (26) when first moving movement (12).
3. according to the conversion equipment of claim 2, it is characterized in that: at least one of these zones (28,30) is made of a spring leg.
4. according to one conversion equipment in the above claim, it is characterized in that: synchronisation spring (10) has pre-tensioning at least in a resting position state.
5. according to the conversion equipment of claim 4, it is characterized in that: be provided with a latching member (32), be used to support the reaction force of synchronisation spring (10).
6. according to one conversion equipment in the above claim, it is characterized in that: be provided with a drive disk assembly (34), be used for being engaged in synchronisation spring (10).
7. according to the conversion equipment of claim 5, it is characterized in that: drive disk assembly (34) is arranged on the functional unit (48) that can rotate in an interval prejudicially.
8. according to the conversion equipment of claim 6, it is characterized in that: drive disk assembly (34) is fixed on the terminal location in described interval by the spring force of synchronisation spring (10).
9. according to one conversion equipment in the above claim, it is characterized in that: synchronisation spring (10) is provided to be used for: be bearing in the bridgeware (36) on the rotating converting member (14) with being engaged in an axial restraint.
10. according to one conversion equipment in the above claim, it is characterized in that: synchronisation spring (10) has at least one plane of symmetry that vertically extends with described direction (20,24).
11. a hand held power machine is characterized in that, it has according to one conversion equipment in the above claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410042734 DE102004042734A1 (en) | 2004-09-03 | 2004-09-03 | Switching device with a synchronization spring |
| DE102004042734.8 | 2004-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1743137A true CN1743137A (en) | 2006-03-08 |
Family
ID=35464492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510099490 Pending CN1743137A (en) | 2004-09-03 | 2005-09-05 | Conversion equipment with synchronisation spring |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1632314A3 (en) |
| CN (1) | CN1743137A (en) |
| DE (1) | DE102004042734A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240443B (en) * | 2013-04-17 | 2016-08-10 | 河海大学 | Spring perpendicular type steel bridge crack forming mechanism boring machine |
| CN106553160A (en) * | 2015-09-30 | 2017-04-05 | 南京德朔实业有限公司 | Arrangement of clutch and the electric hammer with the arrangement of clutch |
| CN112757233A (en) * | 2019-10-21 | 2021-05-07 | 株式会社牧田 | Hammer drill |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004045117A1 (en) * | 2004-09-17 | 2006-03-23 | Robert Bosch Gmbh | switching device |
| US8251156B2 (en) | 2008-10-30 | 2012-08-28 | Black & Decker Inc. | Compliant shifting mechanism for right angle drill |
| DE102008054786A1 (en) | 2008-12-17 | 2010-07-01 | Hilti Aktiengesellschaft | rotary switch |
| EP2842697A1 (en) * | 2013-09-02 | 2015-03-04 | HILTI Aktiengesellschaft | Manual tool machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2112479B (en) * | 1981-11-13 | 1985-05-01 | Black & Decker Inc | Latching arrangement |
| DE3618024A1 (en) * | 1986-05-28 | 1987-12-03 | Hilti Ag | Electric tool with clutch |
| DE4000822A1 (en) * | 1990-01-13 | 1991-07-18 | Bosch Gmbh Robert | ELECTRICALLY POWERED MACHINE TOOL |
| BG51906A1 (en) * | 1992-02-11 | 1993-11-15 | Ganchev | Device for commutation the revolutions of a hand electrical two-speed drilling machine |
| DE4441793B4 (en) * | 1994-11-24 | 2006-08-24 | Robert Bosch Gmbh | Switching device for a hand tool |
| DE10007665A1 (en) * | 2000-02-19 | 2001-09-06 | Scintilla Ag | Machine tool |
| DE10031050A1 (en) * | 2000-06-26 | 2002-01-10 | Hilti Ag | Hand tool |
-
2004
- 2004-09-03 DE DE200410042734 patent/DE102004042734A1/en not_active Ceased
-
2005
- 2005-07-05 EP EP05106068A patent/EP1632314A3/en not_active Withdrawn
- 2005-09-05 CN CN 200510099490 patent/CN1743137A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240443B (en) * | 2013-04-17 | 2016-08-10 | 河海大学 | Spring perpendicular type steel bridge crack forming mechanism boring machine |
| CN106553160A (en) * | 2015-09-30 | 2017-04-05 | 南京德朔实业有限公司 | Arrangement of clutch and the electric hammer with the arrangement of clutch |
| CN106553160B (en) * | 2015-09-30 | 2019-08-06 | 南京德朔实业有限公司 | Arrangement of clutch and electric hammer with the arrangement of clutch |
| CN112757233A (en) * | 2019-10-21 | 2021-05-07 | 株式会社牧田 | Hammer drill |
| CN112757233B (en) * | 2019-10-21 | 2023-05-26 | 株式会社牧田 | Hammer drill |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1632314A2 (en) | 2006-03-08 |
| EP1632314A3 (en) | 2006-04-05 |
| DE102004042734A1 (en) | 2006-03-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |